@node nncp-exec
@pindex nncp-exec
@section nncp-exec

@example
$ nncp-exec [options] [-use-tmp] [-nocompress]      NODE HANDLE [ARG0 ARG1 @dots{}]
$ nncp-exec [options] [-use-tmp] [-nocompress] area:AREA HANDLE [ARG0 ARG1 @dots{}]
@end example

Send execution command to @option{NODE} for specified @option{HANDLE}.
Body is read from @code{stdin} into memory and compressed (unless
@option{-nocompress} is specified). After receiving, remote side will
execute specified @ref{CfgExec, handle} command with @option{ARG*}
appended and decompressed body fed to command's @code{stdin}.

For example, if remote side has following configuration file for your
node:

@verbatim
exec: {
  sendmail: [/usr/sbin/sendmail, "-t"]
  appender: ["/bin/sh", "-c", "cat >> /append"]
}
@end verbatim

@vindex NNCP_SELF
@vindex NNCP_SENDER
@vindex NNCP_NICE
then executing @verb{|echo My message | nncp-exec -replynice 123 REMOTE
sendmail root@localhost|} will lead to execution of:

@example
echo My message |
    NNCP_SELF=REMOTE \
    NNCP_SENDER=OurNodeId \
    NNCP_NICE=123 \
    /usr/sbin/sendmail -t root@@localhost
@end example

If @ref{CfgNotify, notification} is enabled on the remote side for exec
handles, then it will sent simple letter after successful command
execution with its output in message body.

@strong{Pay attention} that packet generated with this command won't be
be chunked.

If you use @option{area:AREA} instead of @option{NODE}, then
@ref{Multicast, multicast} packet will be sent to specified area. That
creates outgoing packet to the @strong{self} node, so you have to run
@ref{nncp-toss, tossing} to create outgoing packets to required subscribers.